StEWI is a collection of Python modules that provide processed USEPA emission and waste generation inventory data in standard tabular formats. The standard outputs may be further aggregated or filtered based on given criteria, and can be combined based on common facility and flows across the inventories.
StEWI consists of a core module, stewi, that digests and provides the USEPA inventory data in standard formats. Two matcher modules, the facilitymatcher
and chemicalmatcher, provide commons IDs for facilities and flows across inventories, which is used by the stewicombo module
to combine the data, and optionally remove overlaps and remove double counting of groups of chemicals based on user preferences.
| Source | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 |
|---|---|---|---|---|---|---|
| Toxic Release Inventory | x | x | x | x | x | x |
| RCRA Biennial Report | x | x | x | |||
| National Emissions Inventory* | x | x | x | |||
| Emissions & Generation Resource Integrated Database | x | x |
*Only point sources included at this time from NEI
The core stewi module produces the following output formats:
Flow-By-Facility: Each row represents the total amount of release or waste of a single type in a given year from the given facility.
Facility: Each row represents a unique facility in a given inventory and given year
Flow: Each row represents a unique flow (substance or waste) in a given inventory and given year
The chemicalmatcher module produces:
Chemical Matches: Each row provides a common identifier for an inventory flow chemical
The facilitymatcher module produces:
Facility Matches: Each row provides a common identifier for an inventory facility
The stewicombo module produces:
Flow-By-Facility Combined: Analagous to the flowbyfacility, with chemical and facilitymatches added
See the Wiki for instructions on installation and use and for contact information.
The United States Environmental Protection Agency (EPA) GitHub project code is provided on an "as is" basis
and the user assumes responsibility for its use. EPA has relinquished control of the information and no longer
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